1253.

therefore knowing this, it hides its face, and the surrounding
animals grow bold and come close, the better to enjoy the sight of
so much beauty; when suddenly it seizes the nearest and at once
devours it.

CAMELS.

The Bactrian have two humps; the Arabian one only. They are swift in
battle and most useful to carry burdens. This animal is extremely
observant of rule and measure, for it will not move if it has a
greater weight than it is used to, and if it is taken too far it
does the same, and suddenly stops and so the merchants are obliged
to lodge there.